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add analogous fallible font fetching methods #62

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Merged
merged 3 commits into from
Feb 25, 2025
Merged

add analogous fallible font fetching methods #62

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3cc0019
add analogous fallible font fetching methods
acarl005 Feb 20, 2025
d4b3bff
return entire HRESULT (severity, facility, code) instead of just the …
acarl005 Feb 20, 2025
86b66a5
clean up new method names
acarl005 Feb 24, 2025
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58 changes: 45 additions & 13 deletions src/font_family.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,54 +26,86 @@ impl FontFamily {
(*self.native.get()).as_raw()
}

#[deprecated(note = "Use `family_name` instead.")]
pub fn name(&self) -> String {
self.family_name().unwrap()
}

pub fn family_name(&self) -> Result<String, HRESULT> {
let mut family_names: *mut IDWriteLocalizedStrings = ptr::null_mut();
unsafe {
let mut family_names: *mut IDWriteLocalizedStrings = ptr::null_mut();
let hr = (*self.native.get()).GetFamilyNames(&mut family_names);
assert!(hr == 0);

get_locale_string(&mut ComPtr::from_raw(family_names))
if hr != 0 {
return Err(hr);
}
Ok(get_locale_string(&mut ComPtr::from_raw(family_names)))
}
}

#[deprecated(note = "Use `first_matching_font` instead.")]
pub fn get_first_matching_font(
&self,
weight: FontWeight,
stretch: FontStretch,
style: FontStyle,
) -> Font {
self.first_matching_font(weight, stretch, style).unwrap()
}

pub fn first_matching_font(
&self,
weight: FontWeight,
stretch: FontStretch,
style: FontStyle,
) -> Result<Font, HRESULT> {
let mut font: *mut IDWriteFont = ptr::null_mut();
unsafe {
let mut font: *mut IDWriteFont = ptr::null_mut();
let hr = (*self.native.get()).GetFirstMatchingFont(
weight.t(),
stretch.t(),
style.t(),
&mut font,
);
assert!(hr == 0);
Font::take(ComPtr::from_raw(font))
if hr != 0 {
return Err(hr);
}
Ok(Font::take(ComPtr::from_raw(font)))
}
}

#[deprecated(note = "Use `font_collection` instead.")]
pub fn get_font_collection(&self) -> FontCollection {
self.font_collection().unwrap()
}

pub fn font_collection(&self) -> Result<FontCollection, HRESULT> {
let mut collection: *mut IDWriteFontCollection = ptr::null_mut();
unsafe {
let mut collection: *mut IDWriteFontCollection = ptr::null_mut();
let hr = (*self.native.get()).GetFontCollection(&mut collection);
assert!(hr == 0);
FontCollection::take(ComPtr::from_raw(collection))
if hr != 0 {
return Err(hr);
}
Ok(FontCollection::take(ComPtr::from_raw(collection)))
}
}

pub fn get_font_count(&self) -> u32 {
unsafe { (*self.native.get()).GetFontCount() }
}

#[deprecated(note = "Use `font` instead.")]
pub fn get_font(&self, index: u32) -> Font {
self.font(index).unwrap()
}

pub fn font(&self, index: u32) -> Result<Font, HRESULT> {
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I'm a little unsure about the name font for this method. Any suggestions? font_from_index maybe?

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font_at_index or font_from_index both sound good to me.

let mut font: *mut IDWriteFont = ptr::null_mut();
unsafe {
let mut font: *mut IDWriteFont = ptr::null_mut();
let hr = (*self.native.get()).GetFont(index, &mut font);
assert!(hr == 0);
Font::take(ComPtr::from_raw(font))
if hr != 0 {
return Err(hr);
}
Ok(Font::take(ComPtr::from_raw(font)))
}
}
}